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Registered
Join Date: Mar 2004
Location: Anchorage, Alaska
Posts: 30
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930 Transmission
OK, the original 76' 930 tranny gear ratio is tall. What can I do to lower the ratio so it drives better in the city and gets better accelleration. I want better accelleration and shifting in the city not top end speed. Also can anyone recommend a good place to have the tranny rebuilt? Thanks
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1976 930, mostly stock Fly fast, drive fast! 1.19 Mach is my record Love my 930 Hate Seattle traffic Believe in the 10% rule |
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03-26-2005, 08:39 PM
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Join Date: Mar 2001
Location: Marysville Wa.
Posts: 22,468
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SC cams and/or a 5 speed conversion.
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https://www.instagram.com/johnwalker8704 8009 103rd pl ne Marysville Wa 98270 206 637 4071 |
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03-26-2005, 09:25 PM
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Automotive Monomaniac
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Quote:
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2018 - Porsche 911 Carrera 7MT / 2018 - Porsche Macan 7DCT / 1993 - Cadillac Allante / 2023 - RAM TRX (on order) |
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03-26-2005, 09:31 PM
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Join Date: Dec 2001
Location: MA USA
Posts: 2,938
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I believe this guy can rebuild your tranny. And he is right down the coast from you.
http://www.johnwalkersworkshop.com/ Dean
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Dean 911 SC turbo, 3.0L 930 motor, G50, 930 brakes, DTA EFI, 352 RWHP DynoDynamic dyno, |
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03-27-2005, 05:00 AM
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Put in 8:39 ring and pinion, Andial has them on their web site.
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2014 Cayman S (track rat w/GT4 suspension) 1979 930 (475 rwhp at 0.95 bar) |
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03-27-2005, 05:03 AM
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Join Date: Jun 2003
Location: St Petersburg, FL
Posts: 3,814
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Quote:
Thats the route I am taking since I like the ratios between the gearset in the 930, I just wished that each was a little shorter. The andial R&P will shorten your gearing by about 20% and is a lot cheaper than a G50 conversion or changing the gearset in the 930 tranny. |
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03-27-2005, 05:24 AM
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I'm planning this change also. From what I can tell the ratios of the 930 with the 8:39 R&P is close to the first 4 gears in the '89 930 5 speed tranny.
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2014 Cayman S (track rat w/GT4 suspension) 1979 930 (475 rwhp at 0.95 bar) |
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03-27-2005, 05:29 AM
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Join Date: Jun 2003
Location: St Petersburg, FL
Posts: 3,814
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I calculated that the R&P change would limit the top speed of my car to somewhere in the mid 160s which is more than fast enough for me.
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03-27-2005, 05:47 AM
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1979 Porsche 930 3.4
